We hear reports that many users don't archive their email. If you don't regularly click on the "archive" button or never even thought about it, here are some reasons you might want to get in the habit. Archiving just means moving mail out of your inbox and storing it for safekeeping. Your messages will be waiting for you when you click All Mail or search for them.

9. Phone numbers and addressesYou never know when you'll need a phone number someone emailed you or an address that was in a signature.

8. Procrastination Sometimes you want to get a message out of your inbox, but you don't want to deal with organization, and you don't want to trash it.7. PosterityJust because you’re not famous now doesn’t mean that in forty years (or fifteen minutes) you won’t want to write your memoir.

6. Winning arguments “But on May 5, 2005 at 8:43pm EDT you said….”

5. Mailing listsDo you really need to know what Clintobamccain is doing every day? Auto-archive* their messages until you want to donate again.4. BirthdaysSearch for “grandma birthday” and voila, find the message you sent her last April. Aren't you glad you archived instead of deleted?

3. ThatguyRemember that guy you thought you’d never need to get in touch with ever again?

2. Because you canMay as well use the free storage space. Plus, clean inbox = clean mind.

1. Fate-tempting is bad. You just never knowThirty-one days after you send that message to the Trash and it gets permanently deleted, you're going to need it. Don't tempt the fates.

*To auto-archive, create a filter with the action "Skip the Inbox (Archive it)."